Farmers also marched on foot in large numbers holding flags of different unions and raising slogans.
Some were seen riding motorcycles and horses.
People also perched atop their tractors and raised slogans and sang revolutionary songs.
Locals were also seen distributing food and water bottles to the protesting farmers who were part of the march.
A senior police officer who was at the spot said that a group of farmers entered the national capital after breaking the barricades.
"As per agreement, they were supposed to start their parade at the time specified but they forcefully entered Delhi and are currently peacefully sitting at Mukarba Chowk.